Stuck under map could shoot could change weapon could melee. I was even killed twice yet never respawned from the same point I was stuck under the Bazaar map. Match time (UK) 2010-2015 August 1st.
If you are encountering issues during the flight, please refer to the known issues list on https://aka.ms/HaloSupportInsider and submit tickets for issues not present.
For general feedback that is not a bug or issue, feel free to use the pinned feedback threads at the top of the Halo Infinite forums
https://www.halowaypoint.com/en-us/forums/29568daf8cd14083bd1b70a810bf3581/topics